The correct answer is A. Experimental group
Explanation:
In experiments, the experimental group refers to the group of subjects that receives special treatment or in which the scientist or researcher intervenes. This is the opposite of a control group that does not receive treatment and therefore, it is used as a reference to measure the effect of the treatment.
This implies, in the experiment presented Group A is the control group as they do not have special treatment because they sleep normally and Group B is the experimental group as the researcher modifies their sleep time and reduces it two hours which means in this group there is a treatment or intervention.
Answer:
Natural immunity occurs when you become immune to a specific disease after contracting it. This triggers your immune system to make antibodies against the germ causing the infection inside of you. Antibodies are like special bodyguards that only recognize certain germs.
The genotype will be NN and the phenotype will be a big nose
Answer:
An acid is a chemical that dissolves in water and when dissolved in water it gives a solution with H+ ions. A base is an aqueous compound that gives electrons, take in protons and the release OH- ions. Acid on the pH scale is 7.0 and below and base on the pH scale is 7.0 and anything else above.
Answer:half of the planets in our solar system is made of gas planets which are past the astroid belt any outer planet is usually always gas and on the outer part of the solar stystem
Explanation:
